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21#include "qemu/osdep.h"
22#include "crypto/tlscredsanon.h"
23#include "tlscredspriv.h"
24#include "qapi/error.h"
25#include "qemu/module.h"
26#include "qom/object_interfaces.h"
27#include "trace.h"
28
29
30#ifdef CONFIG_GNUTLS
31
32
33static int
34qcrypto_tls_creds_anon_load(QCryptoTLSCredsAnon *creds,
35 Error **errp)
36{
37 char *dhparams = NULL;
38 int ret;
39 int rv = -1;
40
41 trace_qcrypto_tls_creds_anon_load(creds,
42 creds->parent_obj.dir ? creds->parent_obj.dir : "<nodir>");
43
44 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
45 if (qcrypto_tls_creds_get_path(&creds->parent_obj,
46 QCRYPTO_TLS_CREDS_DH_PARAMS,
47 false, &dhparams, errp) < 0) {
48 goto cleanup;
49 }
50
51 ret = gnutls_anon_allocate_server_credentials(&creds->data.server);
52 if (ret < 0) {
53 error_setg(errp, "Cannot allocate credentials: %s",
54 gnutls_strerror(ret));
55 goto cleanup;
56 }
57
58 if (qcrypto_tls_creds_get_dh_params_file(&creds->parent_obj, dhparams,
59 &creds->parent_obj.dh_params,
60 errp) < 0) {
61 goto cleanup;
62 }
63
64 gnutls_anon_set_server_dh_params(creds->data.server,
65 creds->parent_obj.dh_params);
66 } else {
67 ret = gnutls_anon_allocate_client_credentials(&creds->data.client);
68 if (ret < 0) {
69 error_setg(errp, "Cannot allocate credentials: %s",
70 gnutls_strerror(ret));
71 goto cleanup;
72 }
73 }
74
75 rv = 0;
76 cleanup:
77 g_free(dhparams);
78 return rv;
79}
80
81
82static void
83qcrypto_tls_creds_anon_unload(QCryptoTLSCredsAnon *creds)
84{
85 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
86 if (creds->data.client) {
87 gnutls_anon_free_client_credentials(creds->data.client);
88 creds->data.client = NULL;
89 }
90 } else {
91 if (creds->data.server) {
92 gnutls_anon_free_server_credentials(creds->data.server);
93 creds->data.server = NULL;
94 }
95 }
96 if (creds->parent_obj.dh_params) {
97 gnutls_dh_params_deinit(creds->parent_obj.dh_params);
98 creds->parent_obj.dh_params = NULL;
99 }
100}
101
102#else
103
104
105static void
106qcrypto_tls_creds_anon_load(QCryptoTLSCredsAnon *creds G_GNUC_UNUSED,
107 Error **errp)
108{
109 error_setg(errp, "TLS credentials support requires GNUTLS");
110}
111
112
113static void
114qcrypto_tls_creds_anon_unload(QCryptoTLSCredsAnon *creds G_GNUC_UNUSED)
115{
116
117}
118
119
120#endif
121
122
123static void
124qcrypto_tls_creds_anon_prop_set_loaded(Object *obj,
125 bool value,
126 Error **errp)
127{
128 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
129
130 if (value) {
131 qcrypto_tls_creds_anon_load(creds, errp);
132 } else {
133 qcrypto_tls_creds_anon_unload(creds);
134 }
135}
136
137
138#ifdef CONFIG_GNUTLS
139
140
141static bool
142qcrypto_tls_creds_anon_prop_get_loaded(Object *obj,
143 Error **errp G_GNUC_UNUSED)
144{
145 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
146
147 if (creds->parent_obj.endpoint == QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
148 return creds->data.server != NULL;
149 } else {
150 return creds->data.client != NULL;
151 }
152}
153
154
155#else
156
157
158static bool
159qcrypto_tls_creds_anon_prop_get_loaded(Object *obj G_GNUC_UNUSED,
160 Error **errp G_GNUC_UNUSED)
161{
162 return false;
163}
164
165
166#endif
167
168
169static void
170qcrypto_tls_creds_anon_complete(UserCreatable *uc, Error **errp)
171{
172 object_property_set_bool(OBJECT(uc), true, "loaded", errp);
173}
174
175
176static void
177qcrypto_tls_creds_anon_finalize(Object *obj)
178{
179 QCryptoTLSCredsAnon *creds = QCRYPTO_TLS_CREDS_ANON(obj);
180
181 qcrypto_tls_creds_anon_unload(creds);
182}
183
184
185static void
186qcrypto_tls_creds_anon_class_init(ObjectClass *oc, void *data)
187{
188 UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
189
190 ucc->complete = qcrypto_tls_creds_anon_complete;
191
192 object_class_property_add_bool(oc, "loaded",
193 qcrypto_tls_creds_anon_prop_get_loaded,
194 qcrypto_tls_creds_anon_prop_set_loaded,
195 NULL);
196}
197
198
199static const TypeInfo qcrypto_tls_creds_anon_info = {
200 .parent = TYPE_QCRYPTO_TLS_CREDS,
201 .name = TYPE_QCRYPTO_TLS_CREDS_ANON,
202 .instance_size = sizeof(QCryptoTLSCredsAnon),
203 .instance_finalize = qcrypto_tls_creds_anon_finalize,
204 .class_size = sizeof(QCryptoTLSCredsAnonClass),
205 .class_init = qcrypto_tls_creds_anon_class_init,
206 .interfaces = (InterfaceInfo[]) {
207 { TYPE_USER_CREATABLE },
208 { }
209 }
210};
211
212
213static void
214qcrypto_tls_creds_anon_register_types(void)
215{
216 type_register_static(&qcrypto_tls_creds_anon_info);
217}
218
219
220type_init(qcrypto_tls_creds_anon_register_types);
221